﻿功能:大数求反余切值.

格式:Bgacot(a)

函数说明:a为符号变量或者是直接输入的数据(注意,可以是负数或者小数).函数执行完毕后返回一个字符串形式的结果值.

例子:

bgacot(0.123456)
ans =
"1.4479618661785986940348742825680323056350512720483292292398288900396209067015070589708741605839322123653336740049507825885597009173010414543563686729755392477717195490991124779091889553716597606428163573010060028710309228957211152037118222805045058665302409553622646649251067715173181230920965927487197277763973166654765511075746845251179456797223183139784017345903424640563078974010797870987596809422121233152008846649876898712003012787639702007436565091984873729964371934999729791112367124"

//修改于2012/5/26